Solar lamp



FIG. 1 is a perspective view of a solar lamp showing my design;

FIG. 2 is a front elevational view of the solar lamp;

FIG. 3 is a left side view of the solar lamp with the right side elevation being identical thereto;

FIG. 4 is a rear elevational view of the solar lamp;

FIG. 5 is a top plan view of the solar lamp; and,

FIG. 6 is a bottom plan view of the solar lamp.

The broken lines showing a lens associated with a pole for the solar lamp are for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a solar lamp, as shown and described. 